87717780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{2039}}^1$

素因数の和:2293

約数の個数: 72

約数和(自身を含む): 267321600

約数和(自身を除く): 179603820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 239, 478, 717, 956, 1195, 1434, 2039, 2151, 2390, 2868, 3585, 4078, 4302, 4780, 6117, 7170, 8156, 8604, 10195, 10755, 12234, 14340, 18351, 20390, 21510, 24468, 30585, 36702, 40780, 43020, 61170, 73404, 91755, 122340, 183510, 367020, 487321, 974642, 1461963, 1949284, 2436605, 2923926, 4385889, 4873210, 5847852, 7309815, 8771778, 9746420, 14619630, 17543556, 21929445, 29239260, 43858890, 87717780]

約数ペア:

[(1, 87717780), (2, 43858890), (3, 29239260), (4, 21929445), (5, 17543556), (6, 14619630), (9, 9746420), (10, 8771778), (12, 7309815), (15, 5847852), (18, 4873210), (20, 4385889), (30, 2923926), (36, 2436605), (45, 1949284), (60, 1461963), (90, 974642), (180, 487321), (239, 367020), (478, 183510), (717, 122340), (956, 91755), (1195, 73404), (1434, 61170), (2039, 43020), (2151, 40780), (2390, 36702), (2868, 30585), (3585, 24468), (4078, 21510), (4302, 20390), (4780, 18351), (6117, 14340), (7170, 12234), (8156, 10755), (8604, 10195)]